/*
 * Copyright (c) 2005, 2006, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
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 */
package javax.swing.plaf.nimbus;

import java.awt.*;
import java.awt.geom.*;
import java.awt.image.*;
import javax.swing.*;
import javax.swing.Painter;


final class InternalFrameTitlePaneCloseButtonPainter extends AbstractRegionPainter {

  //package private integers representing the available states that
  //this painter will paint. These are used when creating a new instance
  //of InternalFrameTitlePaneCloseButtonPainter to determine which region/state is being painted
  //by that instance.
  static final int BACKGROUND_DISABLED = 1;
  static final int BACKGROUND_ENABLED = 2;
  static final int BACKGROUND_MOUSEOVER = 3;
  static final int BACKGROUND_PRESSED = 4;
  static final int BACKGROUND_ENABLED_WINDOWNOTFOCUSED = 5;
  static final int BACKGROUND_MOUSEOVER_WINDOWNOTFOCUSED = 6;
  static final int BACKGROUND_PRESSED_WINDOWNOTFOCUSED = 7;


  private int state; //refers to one of the static final ints above
  private PaintContext ctx;

  //the following 4 variables are reused during the painting code of the layers
  private Path2D path = new Path2D.Float();
  private Rectangle2D rect = new Rectangle2D.Float(0, 0, 0, 0);
  private RoundRectangle2D roundRect = new RoundRectangle2D.Float(0, 0, 0, 0, 0, 0);
  private Ellipse2D ellipse = new Ellipse2D.Float(0, 0, 0, 0);

  //All Colors used for painting are stored here. Ideally, only those colors being used
  //by a particular instance of InternalFrameTitlePaneCloseButtonPainter would be created. For the moment at least,
  //however, all are created for each instance.
  private Color color1 = decodeColor("nimbusRed", 0.5893519f, -0.75736576f, 0.09411764f, 0);
  private Color color2 = decodeColor("nimbusRed", 0.5962963f, -0.71005917f, 0.0f, 0);
  private Color color3 = decodeColor("nimbusRed", 0.6005698f, -0.7200287f, -0.015686274f, -122);
  private Color color4 = decodeColor("nimbusBlueGrey", 0.0055555105f, -0.062449392f, 0.07058823f,
      0);
  private Color color5 = decodeColor("nimbusBlueGrey", 0.0055555105f, -0.0029994324f, -0.38039216f,
      -185);
  private Color color6 = decodeColor("nimbusRed", -0.014814814f, 0.20118344f, -0.4431373f, 0);
  private Color color7 = decodeColor("nimbusRed", -2.7342606E-4f, 0.13829035f, -0.039215684f, 0);
  private Color color8 = decodeColor("nimbusRed", 6.890595E-4f, -0.36665577f, 0.11764705f, 0);
  private Color color9 = decodeColor("nimbusRed", -0.001021713f, 0.101804554f, -0.031372547f, 0);
  private Color color10 = decodeColor("nimbusRed", -2.7342606E-4f, 0.13243341f, -0.035294116f, 0);
  private Color color11 = decodeColor("nimbusRed", -2.7342606E-4f, 0.002258718f, 0.06666666f, 0);
  private Color color12 = decodeColor("nimbusRed", 0.0056530247f, 0.0040003657f, -0.38431373f,
      -122);
  private Color color13 = decodeColor("nimbusBlueGrey", 0.0f, -0.110526316f, 0.25490195f, 0);
  private Color color14 = decodeColor("nimbusRed", -0.014814814f, 0.20118344f, -0.3882353f, 0);
  private Color color15 = decodeColor("nimbusRed", -0.014814814f, 0.20118344f, -0.13333333f, 0);
  private Color color16 = decodeColor("nimbusRed", 6.890595E-4f, -0.38929275f, 0.1607843f, 0);
  private Color color17 = decodeColor("nimbusRed", 2.537202E-5f, 0.012294531f, 0.043137252f, 0);
  private Color color18 = decodeColor("nimbusRed", -2.7342606E-4f, 0.033585668f, 0.039215684f, 0);
  private Color color19 = decodeColor("nimbusRed", -2.7342606E-4f, -0.07198727f, 0.14117646f, 0);
  private Color color20 = decodeColor("nimbusRed", -0.014814814f, 0.20118344f, 0.0039215684f, -122);
  private Color color21 = decodeColor("nimbusBlueGrey", 0.0f, -0.110526316f, 0.25490195f, -140);
  private Color color22 = decodeColor("nimbusRed", -0.014814814f, 0.20118344f, -0.49411768f, 0);
  private Color color23 = decodeColor("nimbusRed", -0.014814814f, 0.20118344f, -0.20392159f, 0);
  private Color color24 = decodeColor("nimbusRed", -0.014814814f, -0.21260965f, 0.019607842f, 0);
  private Color color25 = decodeColor("nimbusRed", -0.014814814f, 0.17340565f, -0.09803921f, 0);
  private Color color26 = decodeColor("nimbusRed", -0.014814814f, 0.20118344f, -0.10588235f, 0);
  private Color color27 = decodeColor("nimbusRed", -0.014814814f, 0.20118344f, -0.04705882f, 0);
  private Color color28 = decodeColor("nimbusRed", -0.014814814f, 0.20118344f, -0.31764707f, -122);
  private Color color29 = decodeColor("nimbusRed", 0.5962963f, -0.6994788f, -0.07058823f, 0);
  private Color color30 = decodeColor("nimbusRed", 0.5962963f, -0.66245294f, -0.23137257f, 0);
  private Color color31 = decodeColor("nimbusRed", 0.58518517f, -0.77649516f, 0.21568626f, 0);
  private Color color32 = decodeColor("nimbusRed", 0.5962963f, -0.7372781f, 0.10196078f, 0);
  private Color color33 = decodeColor("nimbusRed", 0.5962963f, -0.73911506f, 0.12549019f, 0);
  private Color color34 = decodeColor("nimbusBlueGrey", 0.0f, -0.027957506f, -0.31764707f, 0);


  //Array of current component colors, updated in each paint call
  private Object[] componentColors;

  public InternalFrameTitlePaneCloseButtonPainter(PaintContext ctx, int state) {
    super();
    this.state = state;
    this.ctx = ctx;
  }

  @Override
  protected void doPaint(Graphics2D g, JComponent c, int width, int height,
      Object[] extendedCacheKeys) {
    //populate componentColors array with colors calculated in getExtendedCacheKeys call
    componentColors = extendedCacheKeys;
    //generate this entire method. Each state/bg/fg/border combo that has
    //been painted gets its own KEY and paint method.
    switch (state) {
      case BACKGROUND_DISABLED:
        paintBackgroundDisabled(g);
        break;
      case BACKGROUND_ENABLED:
        paintBackgroundEnabled(g);
        break;
      case BACKGROUND_MOUSEOVER:
        paintBackgroundMouseOver(g);
        break;
      case BACKGROUND_PRESSED:
        paintBackgroundPressed(g);
        break;
      case BACKGROUND_ENABLED_WINDOWNOTFOCUSED:
        paintBackgroundEnabledAndWindowNotFocused(g);
        break;
      case BACKGROUND_MOUSEOVER_WINDOWNOTFOCUSED:
        paintBackgroundMouseOverAndWindowNotFocused(g);
        break;
      case BACKGROUND_PRESSED_WINDOWNOTFOCUSED:
        paintBackgroundPressedAndWindowNotFocused(g);
        break;

    }
  }


  @Override
  protected final PaintContext getPaintContext() {
    return ctx;
  }

  private void paintBackgroundDisabled(Graphics2D g) {
    roundRect = decodeRoundRect1();
    g.setPaint(decodeGradient1(roundRect));
    g.fill(roundRect);
    path = decodePath1();
    g.setPaint(color3);
    g.fill(path);
    path = decodePath2();
    g.setPaint(color4);
    g.fill(path);

  }

  private void paintBackgroundEnabled(Graphics2D g) {
    roundRect = decodeRoundRect2();
    g.setPaint(color5);
    g.fill(roundRect);
    roundRect = decodeRoundRect1();
    g.setPaint(decodeGradient2(roundRect));
    g.fill(roundRect);
    roundRect = decodeRoundRect3();
    g.setPaint(decodeGradient3(roundRect));
    g.fill(roundRect);
    path = decodePath1();
    g.setPaint(color12);
    g.fill(path);
    path = decodePath2();
    g.setPaint(color13);
    g.fill(path);

  }

  private void paintBackgroundMouseOver(Graphics2D g) {
    roundRect = decodeRoundRect2();
    g.setPaint(color5);
    g.fill(roundRect);
    roundRect = decodeRoundRect1();
    g.setPaint(decodeGradient4(roundRect));
    g.fill(roundRect);
    roundRect = decodeRoundRect4();
    g.setPaint(decodeGradient5(roundRect));
    g.fill(roundRect);
    path = decodePath1();
    g.setPaint(color20);
    g.fill(path);
    path = decodePath2();
    g.setPaint(color13);
    g.fill(path);

  }

  private void paintBackgroundPressed(Graphics2D g) {
    roundRect = decodeRoundRect2();
    g.setPaint(color21);
    g.fill(roundRect);
    roundRect = decodeRoundRect1();
    g.setPaint(decodeGradient6(roundRect));
    g.fill(roundRect);
    roundRect = decodeRoundRect3();
    g.setPaint(decodeGradient7(roundRect));
    g.fill(roundRect);
    path = decodePath1();
    g.setPaint(color28);
    g.fill(path);
    path = decodePath2();
    g.setPaint(color13);
    g.fill(path);

  }

  private void paintBackgroundEnabledAndWindowNotFocused(Graphics2D g) {
    roundRect = decodeRoundRect1();
    g.setPaint(decodeGradient8(roundRect));
    g.fill(roundRect);
    roundRect = decodeRoundRect3();
    g.setPaint(decodeGradient9(roundRect));
    g.fill(roundRect);
    path = decodePath2();
    g.setPaint(color34);
    g.fill(path);

  }

  private void paintBackgroundMouseOverAndWindowNotFocused(Graphics2D g) {
    roundRect = decodeRoundRect2();
    g.setPaint(color5);
    g.fill(roundRect);
    roundRect = decodeRoundRect1();
    g.setPaint(decodeGradient4(roundRect));
    g.fill(roundRect);
    roundRect = decodeRoundRect4();
    g.setPaint(decodeGradient5(roundRect));
    g.fill(roundRect);
    path = decodePath1();
    g.setPaint(color20);
    g.fill(path);
    path = decodePath2();
    g.setPaint(color13);
    g.fill(path);

  }

  private void paintBackgroundPressedAndWindowNotFocused(Graphics2D g) {
    roundRect = decodeRoundRect2();
    g.setPaint(color21);
    g.fill(roundRect);
    roundRect = decodeRoundRect1();
    g.setPaint(decodeGradient6(roundRect));
    g.fill(roundRect);
    roundRect = decodeRoundRect3();
    g.setPaint(decodeGradient7(roundRect));
    g.fill(roundRect);
    path = decodePath1();
    g.setPaint(color28);
    g.fill(path);
    path = decodePath2();
    g.setPaint(color13);
    g.fill(path);

  }


  private RoundRectangle2D decodeRoundRect1() {
    roundRect.setRoundRect(decodeX(1.0f), //x
        decodeY(1.0f), //y
        decodeX(2.0f) - decodeX(1.0f), //width
        decodeY(1.9444444f) - decodeY(1.0f), //height
        8.6f, 8.6f); //rounding
    return roundRect;
  }

  private Path2D decodePath1() {
    path.reset();
    path.moveTo(decodeX(1.25f), decodeY(1.7373737f));
    path.lineTo(decodeX(1.3002392f), decodeY(1.794192f));
    path.lineTo(decodeX(1.5047847f), decodeY(1.5909091f));
    path.lineTo(decodeX(1.6842105f), decodeY(1.7954545f));
    path.lineTo(decodeX(1.7595694f), decodeY(1.719697f));
    path.lineTo(decodeX(1.5956938f), decodeY(1.5239899f));
    path.lineTo(decodeX(1.7535884f), decodeY(1.3409091f));
    path.lineTo(decodeX(1.6830144f), decodeY(1.2537879f));
    path.lineTo(decodeX(1.5083733f), decodeY(1.4406565f));
    path.lineTo(decodeX(1.3301436f), decodeY(1.2563131f));
    path.lineTo(decodeX(1.257177f), decodeY(1.3320707f));
    path.lineTo(decodeX(1.4270334f), decodeY(1.5252526f));
    path.lineTo(decodeX(1.25f), decodeY(1.7373737f));
    path.closePath();
    return path;
  }

  private Path2D decodePath2() {
    path.reset();
    path.moveTo(decodeX(1.257177f), decodeY(1.2828283f));
    path.lineTo(decodeX(1.3217703f), decodeY(1.2133838f));
    path.lineTo(decodeX(1.5f), decodeY(1.4040405f));
    path.lineTo(decodeX(1.673445f), decodeY(1.2108586f));
    path.lineTo(decodeX(1.7440192f), decodeY(1.2853535f));
    path.lineTo(decodeX(1.5669856f), decodeY(1.4709597f));
    path.lineTo(decodeX(1.7488039f), decodeY(1.6527778f));
    path.lineTo(decodeX(1.673445f), decodeY(1.7398989f));
    path.lineTo(decodeX(1.4988039f), decodeY(1.5416667f));
    path.lineTo(decodeX(1.3313397f), decodeY(1.7424242f));
    path.lineTo(decodeX(1.2523923f), decodeY(1.6565657f));
    path.lineTo(decodeX(1.4366028f), decodeY(1.4722222f));
    path.lineTo(decodeX(1.257177f), decodeY(1.2828283f));
    path.closePath();
    return path;
  }

  private RoundRectangle2D decodeRoundRect2() {
    roundRect.setRoundRect(decodeX(1.0f), //x
        decodeY(1.6111112f), //y
        decodeX(2.0f) - decodeX(1.0f), //width
        decodeY(2.0f) - decodeY(1.6111112f), //height
        6.0f, 6.0f); //rounding
    return roundRect;
  }

  private RoundRectangle2D decodeRoundRect3() {
    roundRect.setRoundRect(decodeX(1.0526316f), //x
        decodeY(1.0530303f), //y
        decodeX(1.9473684f) - decodeX(1.0526316f), //width
        decodeY(1.8863636f) - decodeY(1.0530303f), //height
        6.75f, 6.75f); //rounding
    return roundRect;
  }

  private RoundRectangle2D decodeRoundRect4() {
    roundRect.setRoundRect(decodeX(1.0526316f), //x
        decodeY(1.0517677f), //y
        decodeX(1.9473684f) - decodeX(1.0526316f), //width
        decodeY(1.8851011f) - decodeY(1.0517677f), //height
        6.75f, 6.75f); //rounding
    return roundRect;
  }


  private Paint decodeGradient1(Shape s) {
    Rectangle2D bounds = s.getBounds2D();
    float x = (float) bounds.getX();
    float y = (float) bounds.getY();
    float w = (float) bounds.getWidth();
    float h = (float) bounds.getHeight();
    return decodeGradient((0.24868421f * w) + x, (0.0014705883f * h) + y, (0.24868421f * w) + x,
        (1.0f * h) + y,
        new float[]{0.0f, 0.5f, 1.0f},
        new Color[]{color1,
            decodeColor(color1, color2, 0.5f),
            color2});
  }

  private Paint decodeGradient2(Shape s) {
    Rectangle2D bounds = s.getBounds2D();
    float x = (float) bounds.getX();
    float y = (float) bounds.getY();
    float w = (float) bounds.getWidth();
    float h = (float) bounds.getHeight();
    return decodeGradient((0.24868421f * w) + x, (0.0014705883f * h) + y, (0.24868421f * w) + x,
        (1.0f * h) + y,
        new float[]{0.0f, 0.5f, 1.0f},
        new Color[]{color6,
            decodeColor(color6, color7, 0.5f),
            color7});
  }

  private Paint decodeGradient3(Shape s) {
    Rectangle2D bounds = s.getBounds2D();
    float x = (float) bounds.getX();
    float y = (float) bounds.getY();
    float w = (float) bounds.getWidth();
    float h = (float) bounds.getHeight();
    return decodeGradient((0.25f * w) + x, (0.0f * h) + y, (0.25441176f * w) + x,
        (1.0016667f * h) + y,
        new float[]{0.0f, 0.26988637f, 0.53977275f, 0.5951705f, 0.6505682f, 0.8252841f, 1.0f},
        new Color[]{color8,
            decodeColor(color8, color9, 0.5f),
            color9,
            decodeColor(color9, color10, 0.5f),
            color10,
            decodeColor(color10, color11, 0.5f),
            color11});
  }

  private Paint decodeGradient4(Shape s) {
    Rectangle2D bounds = s.getBounds2D();
    float x = (float) bounds.getX();
    float y = (float) bounds.getY();
    float w = (float) bounds.getWidth();
    float h = (float) bounds.getHeight();
    return decodeGradient((0.24868421f * w) + x, (0.0014705883f * h) + y, (0.24868421f * w) + x,
        (1.0f * h) + y,
        new float[]{0.0f, 0.5f, 1.0f},
        new Color[]{color14,
            decodeColor(color14, color15, 0.5f),
            color15});
  }

  private Paint decodeGradient5(Shape s) {
    Rectangle2D bounds = s.getBounds2D();
    float x = (float) bounds.getX();
    float y = (float) bounds.getY();
    float w = (float) bounds.getWidth();
    float h = (float) bounds.getHeight();
    return decodeGradient((0.25f * w) + x, (0.0f * h) + y, (0.25441176f * w) + x,
        (1.0016667f * h) + y,
        new float[]{0.0f, 0.26988637f, 0.53977275f, 0.5951705f, 0.6505682f, 0.81480503f,
            0.97904193f},
        new Color[]{color16,
            decodeColor(color16, color17, 0.5f),
            color17,
            decodeColor(color17, color18, 0.5f),
            color18,
            decodeColor(color18, color19, 0.5f),
            color19});
  }

  private Paint decodeGradient6(Shape s) {
    Rectangle2D bounds = s.getBounds2D();
    float x = (float) bounds.getX();
    float y = (float) bounds.getY();
    float w = (float) bounds.getWidth();
    float h = (float) bounds.getHeight();
    return decodeGradient((0.24868421f * w) + x, (0.0014705883f * h) + y, (0.24868421f * w) + x,
        (1.0f * h) + y,
        new float[]{0.0f, 0.5f, 1.0f},
        new Color[]{color22,
            decodeColor(color22, color23, 0.5f),
            color23});
  }

  private Paint decodeGradient7(Shape s) {
    Rectangle2D bounds = s.getBounds2D();
    float x = (float) bounds.getX();
    float y = (float) bounds.getY();
    float w = (float) bounds.getWidth();
    float h = (float) bounds.getHeight();
    return decodeGradient((0.25f * w) + x, (0.0f * h) + y, (0.25441176f * w) + x,
        (1.0016667f * h) + y,
        new float[]{0.0f, 0.26988637f, 0.53977275f, 0.5951705f, 0.6505682f, 0.81630206f,
            0.98203593f},
        new Color[]{color24,
            decodeColor(color24, color25, 0.5f),
            color25,
            decodeColor(color25, color26, 0.5f),
            color26,
            decodeColor(color26, color27, 0.5f),
            color27});
  }

  private Paint decodeGradient8(Shape s) {
    Rectangle2D bounds = s.getBounds2D();
    float x = (float) bounds.getX();
    float y = (float) bounds.getY();
    float w = (float) bounds.getWidth();
    float h = (float) bounds.getHeight();
    return decodeGradient((0.24868421f * w) + x, (0.0014705883f * h) + y, (0.24868421f * w) + x,
        (1.0f * h) + y,
        new float[]{0.0f, 0.5f, 1.0f},
        new Color[]{color29,
            decodeColor(color29, color30, 0.5f),
            color30});
  }

  private Paint decodeGradient9(Shape s) {
    Rectangle2D bounds = s.getBounds2D();
    float x = (float) bounds.getX();
    float y = (float) bounds.getY();
    float w = (float) bounds.getWidth();
    float h = (float) bounds.getHeight();
    return decodeGradient((0.25f * w) + x, (0.0f * h) + y, (0.25441176f * w) + x,
        (1.0016667f * h) + y,
        new float[]{0.0f, 0.24101797f, 0.48203593f, 0.5838324f, 0.6856288f, 0.8428144f, 1.0f},
        new Color[]{color31,
            decodeColor(color31, color32, 0.5f),
            color32,
            decodeColor(color32, color32, 0.5f),
            color32,
            decodeColor(color32, color33, 0.5f),
            color33});
  }


}
